Complete Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Cold-Blooded	Kill hundred monsters.
Defeat the Egg Monster	Defeat the Egg Monster.
Defeat the Giant Hand Monster	Defeat the Giant Hand Monster.
Defeat the Goddess	Defeat Karen.
Dual Guns	Obtain Two Shotguns Simultaneously.
Electric Tentacles	Defeat the Tentacle Monster.
Firearms Expert	Craft a handgun.
Goddess Recovery	Goddess Recovery.
Headshot Master	Perform fifty Headshots.
I Love School Uniforms	Collect All Outfits.
Master Alchemist	Synthesize medicinal powder.
Prologue	Start Game.
Rat Infestation	Defeat the Rats.
Real Experience	Complete Hard Mode.
The End	Defeat Calvin.
The Real Challenge	Start Hard Mode.